baber/WOPTO huggingface dataset:
Patent GB-1386431-A (GB)
Title: Device for causing pulsatory operation of an electromagnet in a circular knitting machine
IPC: D04B15/66
Filed: 1972-04-20
Abstract: 1386431 Knitting machines ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 20 April 1972 [30 April 1971] 18485/72 Heading D1C [Also in Division H3] A circuit for pulsing an electro-magnet in a circular knitting machine comprises means for connecting the coil of the magnet in a resonant circuit for rapidly building up current in the coil, means for providing a holding current and means for rapidly switching off the current. When transistor 6 is made conductive a capacitor 18 discharges resonantly through the winding 5 of the electromagnet to effect rapid operation. The voltage across the capacitor decreases but is held when it falls below a voltage ub 2  whereafter a holding current is supplied through a variable resistor 24 and a diode 23. Turning off transistor 6 allows the energy in the coil to dissipate rapidly through a resonant-circuit completed by diode 11, capacitor 31 and capacitor 18. Thyristor 2 is now fired to resonontly recharge the capacitor 17 through inductor 18. A diode 28 allows the inductor to discharge when the thyristor extinguishes and a resistor 16 allows capacitor 20 its charge on first switching the circuit on.
Patent GB-582623-A (GB)
Title: Improvements in sockets adapted to cooperate with two-pin lamp caps
IPC: H01R33/08
Filed: 1942-12-30
Abstract: 582,623. Lamp caps and holders. GENERAL ELECTRIC CO., Ltd., and PHILLIPS, L. E. A. Dec. 30, 1942, No. 18496. Addition to 541,556. [Class 38 (i)] The socket of the parent Specification has a spring catch 18, one end 19 of which projects into the slot 5 in the rotatable disc 3 but is ejected from the slot on inserting the lamp-pin 17, thereby allowing the disc 3 to be rotated to bring the pins 16, 17 into engagement with the contacts 12, 13.
Patent GB-1288143-A (GB)
IPC: G02B21/22
Filed: 1970-04-17
Abstract: 1288143 Stereomicroscopes R RODENSTOCK [trading as OPTISCHE WERKE G RODENSTOCK] 17 April 1970 [19 April 1969] 18496/70 Heading G2J A stereomicroscope comprises a common entry objective 5<SP>1</SP> for both observation ray paths, a magnification charger 3 defining separate optical axes for the two observation ray paths, and a reflector 2 between the objective and the magnification charger on, and at an angle to, the optical axis of the objective and between the optical axis of the magnification changer. These components are mounted in a housing 1 having means 4, 5 and 6 for connection to further apparatus, such as a binocular telescope 16, illuminating arrangement 9, camera (8), Fig. 2 (not shown) or eye-examining attachment (10), Fig. 3 (not shown). The reflector 2 may be a prism or a mirror.
Patent GB-613624-A (GB)
Title: Improvements in transmitter-receiver combination
IPC: H04B1/54
Filed: 1946-06-20
Abstract: 613,624. Radio receiving systems. DEHN, F. B. (Collins Radio Co.). June 20, 1946, No. 18608. [Class 40 (v)] In a transmitter receiver combination operating on the same carrier frequency, on switching from transmit to receive the transmitted wave is displaced by a given frequency and heterodynes with the incoming signal to give an I.F. equal to the frequency displacement, thus obviating the necessity of retuning. As shown, a fixed oscillator C generates a fixed frequency, e.g. 1 mc/s., which is multiplied in D to provide a plurality of fixed frequencies, e.g. 5, 6, 7 and 8 mc/s. An oscillator A tunable over, the difference range between the fixed frequencies, e.g. a 1 mc/s. band from 1/2 mc/s. is associated with the multiplier D through a mixer B so as to provide continuity between three derived wave bands for transmission and reception corresponding to the different fixed frequencies. When switched to the receive position by the switches F<1>, J<1> as shown, the next higher fixed frequency in the multiplier D is selected and the mixed output is displaced by an amount equal to the I.F. frequency of the receiver amplifier M, and is used in the mixer L as the heterodyning signal of the receiver. In this manner, transmission and reception are ensured on the same frequency without additional tuning. If, for example, the apparatus is set for transmission on 3.5 mc/s., produced by mixing the fixed frequency 5 mc/s. with 1.5 mc/s., incoming signals of 3.5 mc/s. can be received by switching a frequency of 4.5 mc/s. derived from the fixed frequency 6 mc/s. on to the mixer L so as to give I.F. signals of 1 mc/s. A dial for providing direct frequency reading in any of the wave bands is provided. The generators A and C comprise electron tube oscillators arranged so that the frequency of the tunable oscillator A is less than half the frequency of the desired wave output and is subtracted from that of the fixed oscillator C in the mixer B. To avoid undesired harmonies, the variable oscillator voltage delivered to the mixer B is made small compared with that of the fixed oscillator C.
Patent GB-242344-A (GB)
Title: Improvements in or relating to apparatus for extracting and conveying waste from combing machines
IPC: D01G19/28
Filed: 1924-08-06
Abstract: 242,344. Rushton, J. L. Aug. 6, 1924. Combing-machines. - In an arrangement for removing the noil, waste, &c. from combing- machines casings or brush tins 2, Fig. 1, are provided around the brush at each head and are connected by tapering tubes 3 to branch pipes 4, Fig. 4, of a manifold 5 leading through a pipe 6 to a main duct 7, which serves a number of machines. The duct leads to a pneumatic delivery box 12 where the waste is collected and delivered into a suitable receptacle. The fan 13 is situated beyond the waste collecting box. Each tube 3 is provided with a slot in which can be inserted a perforated waste collecting plate 9. The amount of waste collected on this plate in a given time can be weighed to determine the percentage produced by each head. In a modified arrangement the waste is collected on an aspirator 10, Fig. 5 and is removed therefrom by suction through a nozzle 4.
Patent GB-1137955-A (GB)
Title: Improvements in or relating to soot blowers
IPC: F28G15/02
Filed: 1966-08-25
Abstract: 1,137,955. Soot - blowers. DIAMOND POWER SPECIALTY CORP. 25 Aug., 1966 [9 Sept., 1965], No. 18713/68. Divided out of 1,137,954. Heading F2N. In a soot-blower comprising a lance tube advanced and retracted to and from the working position thereof, an anti-friction roller which underengages and supports the tube is rotatable about an axis perpendicular to a helical path traced by a point on the lance tube. The subject-matter of this specification is identical with that described in the parent specification.
Patent GB-626802-A (GB)
Title: Dump wagon
IPC: B60P1/00
Filed: 1947-07-15
Abstract: 626,802. Dump wagons. CATERPILLAR TRACTOR CO. July 15, 1947, No. 18779. Convention date, June 13, 1941. [Class 108 (i)] A dump wagon having a body comprising sides 6, and end walls 3, 4 has a bottom closable by two doors 9 hinged along their outer edges to the sides 6, the hinge connections being such that when the doors 9 are open they are closer together at the front of the body than at the rear.
Patent GB-694226-A (GB)
Title: An improved device for shortening the distance between the pedal and the axis of rotation of a bicycle crank
IPC: B62M3/02
Filed: 1951-08-09
Abstract: 694,226. Adjustable cranks. IJPELAAR, A. Aug. 9, 1951 (Aug. 9, 1950], No. 18806/51. Class 80 (iii). An adjustable crank device for a bicycle comprises a pedal carrying member 3 secured to the front face of the normal crank arm 1 by means of a pin 2 screwing into the normal pedal shaft hole and having one or more holes 5, 6 at a distance or varying distances from the end of the crank arm into which the pedal shaft can be screwed.
Patent GB-860409-A (GB)
Title: Improvements in or relating to impregnated carbon brushes for electrical machines
IPC: H01R43/12
Filed: 1957-06-14
Abstract: 860,409. Impregnated electric contact brushes. SOC. LE CARBONE-LORRAINE. June 14, 1957 [June 14, 1956; May 24, 1957], No. 18832/57. Class 140. A method for manufacturing carbon brushes for electrical machinery comprises impregnating the individual brushes or blanks therefor with a thermosetting resin comprising a copolymerizable mixture of a non-saturated polyester resin and an arylvinylic monomer, the impregnation being effected in the presence of a small quantity of a setting catalyst and the mixture then being set by heating. Suitable polyester resins may be obtained by esterification of a polyalcohol by at least two different dicarboxylic acids one of which is saturated or aromatic and the other is aliphatic with at least one reactive ethylene link. A specified polyalcohol is diethylene-glycol. Styrene reticulated polyester resins may be used. Specified setting catalysts are peroxy organic compounds or siccatives constituted by compounds of cobalt, manganese or lead (e.g. cobalt naphthenate or cobalt octoate). In an example the impregnating mixture comprises a polyester produced from diethylene glycol, phthalic anhydride, and maleic anhydride with monomeric styrene and a setting catalyst consisting of cobalt naphthenate. Reference has been directed by the Comptroller to Specification 793,455.
Patent GB-806454-A (GB)
Title: Improvements in safety devices for electrical control gear
Inventor: HENMAN CECIL BOURNE
IPC: G05F1/14
Filed: 1955-06-29
Abstract: 806,454. Switching systems for transformers. BRENTFORD TRANSFORMERS Ltd. Sept. 25, 1956 [June 29, 1955], No. 18872/55. Class 38 (4). A safety switch to ensure reduction of the supply voltage to, say, an electric motor in the event of restoration of the supply after an interruption, comprises a two-position switch having contacts B, C connected to the secondary winding of a transformer T2, and contact A to the secondary tap 3 on a voltage regulator T1. A spring 4 urges a sliding member 1 to shortcircuit contacts B, C, while a solenoid 2 energized from the supply causes it to connect contacts A, B. A relay (not shown) with a selfholding contact connected in the solenoid circuit, restores the supply to the solenoid by means of a contactor slider 3 when it is in the starting position. On failure of the supply, solenoid 2 is de-energized, spring 4 causing slider 1 to short-circuit the secondary winding of T2. When the slider 3 is returned to the starting position solenoid 2 is re-energized on resumption of the supply reconnecting contacts A, B. Other arrangements (not shown) are given describing circuits for voltage regulators having two sliders. Specification 782,988 is referred to.
Patent GB-829373-A (GB)
Title: Cylindrical ampoule with injection needle
IPC: A61M5/28
Filed: 1957-06-14
Abstract: 829,373. Hypodermic injection appliances. FARBENFABRIKEN BAYER A.G. June 14, 1957 [June 25, 1956], No. 18882/57. Class 81 (2). A hypodermic injection device comprises a cylindrical ampoule 2 with a piston closure 3 and an injection needle 9 having a protective sheath 8 with a flanged end 14, the end of the needle having a flanged attachment adjacent the ampoule and a cap 4 securing the flanged ends 13, 14 of the attachment 5 and the sheath 8 to the ampoule 2. The neck of the ampoule 2 has a plug 6 through which the needle 9 passes. The cap 4 is flanged around a beaded lip 15 of the neck of the ampoule 2. A synthetic plastic holder 1 for the ampoule 2 and a plunger 7 which removably covers the needle 9 and the sheath 8, are screwed on the cap 4. In use the plunger 7 is detached from the cap 4 and screwed on a boss 3a on the piston closure 3. Clogging of the needle is prevented by a stylet 10. As the sheath 8 is removed the stylet 10 is simultaneously withdrawn, a bent part of the stylet 10, which projects from the needle, engaging a bead 16 in the sheath 8.
Patent GB-639669-A (GB)
Title: Apparatus for making paper
IPC: D21F1/46
Filed: 1947-07-16
Abstract: 639,669. Driving dandy rolls of papermaking machines. SPENCER, J. A. July 16, 1947, No. 18886. Convention date, April 12, 1940. [Class 96] The dandy roll 30 of a Fourdrinier papermaking machine is positively driven from the wire drive by a shaft 98 mounted independently of the axle 34 of the dandy roll and aligned therewith, a clutch 108, 110 being interposed. The shaft 98 may be driven from a shaft 16 (geared to the couch roll 10), through a variable speed box 60 and reduction gear 84. The axle 34 may be mounted in vertically adjustable bearings 42 and the shaft 98 may be slidingly mounted in a bearing 100 movable vertically and horizontally.
Patent GB-613651-A (GB)
Title: Improvements in or relating to the removal of sulphur compounds from gases
IPC: C10K1/34
Filed: 1946-06-24
Abstract: 613,651. Purifying gases. DERHAM, L. J., and JOHNSON, F. J. June 24, 1946, Nos. 18887 and 28715. [Class 55(ii)] A process for the removal of sulphur, especially organic sulphur, compounds from fuel gases, comprises bringing the gases without previous addition of steam, into contact with either the oxide, hydroxide or carbonate of an alkali metal or alkaline earth metal or a mixture of such substances at a temperature between approximately 100‹C. and 850‹C., the substances being supported by and distributed throughout a porous or cellular support. The latter may consist of a refractory material, e.g. pumice or Kieselguhr, or it may consist of coke. In one method, the contact material is prepared by mixing finely ground hydrated lime with a finely ground, highly swelling coal, preferably in the proportions of 1 to 10. The mixture, which may first be briquetted or granulated, is heated to 800‹ C. under conditions giving a cellular coke, which will contain calcium oxide in an active form and with a large surface area. This coke is broken and graded and placed in a reaction chamber through which the gas to be treated is passed. In another method, the material is prepared by impregnating the support with a solution or suspension of the oxide, hydroxides or carbonates and drying. The process may be rendered continuous by regenerating the active material by treatment with steam and carbon dioxide. Specification 367,577 is referred to.
Patent GB-500463-A (GB)
Title: Improvements relating to cylinder joints for internal combustion engines
IPC: F02F11/00
Filed: 1938-06-25
Abstract: 500,463. Flocculating clay; gelatine. ENGLISH. CLAYS, LOVERING, POCHIN, & CO., Ltd., and DAVIES, R. J. Nov. 29, 1937, No. 32882. Addition to 471,554. [Class 1 (iii)] [Also in Group V] Clay is precipitated from aqueous suspension by a flocculating reagent obtained by dissolving glue or gelatine in hot water in known manner, allowing the resulting hydrosol to cool, and keeping it for at least 12 hours before use. The flocculating power of the hydrosol is increased by this period of keeping. If the clay suspension does not possess an acid reaction, as in the case of forming the suspension with the aid of an alkaline deflocculator, a . small amount of an acid or acid salt such as sulphuric acid or alum may be added to the hydrosol or to 'the suspension. Examples of operation are given and Specification 433,416 is referred to.,
Patent GB-474998-A (GB)
Title: Improvements in the construction of wooden walls, floors, ceilings and other structures
IPC: E04B1/10
Filed: 1936-07-08
Abstract: 474,998. Portable buildings; slabs. DIXON, H. E. (Hoch- & Tiefbau Akt.-Ges. Interlaken, vorm. Parquet- & Chaletfabrik Interlaken) July 8, 1936, No. 18915. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 22, 1937.] [Classes 20 (i) and 87 (i)] Relates to walls, floors, roofs, and other building structures, which are formed of connected wooden sections each comprising a frame covered with a wooden surfacing layer. According to the invention, the wooden sections are constructed and assembled as follows: (1) they engage at one end in a rabbet provided in an adjacent building-frame member b, and at the other end have tenons c3 for engaging a groove in an adjacent building-frame member a as shown in Figs. 1 and 2; (2) they are provided with undercut edges so as to make half-dovetail joints with each other as shown in Fig. 3 ; and (3) they are held together along their side edges, and to the frame of the building along their end edges, in a readily dismantled manner, by locking devices let into adjacent frame members and operated externally by a key. Each section comprises, as shown in Figs. 1 and 2, side frames c, upper and lower frames c<1>, c<2>, a timber filling e, outer sheathing f, and, if desired, an insulating layer g of cardboard, roofing felt, &c. The sheathing f extends over the joints between the sections and the frame members a, b. The locking device is in the form of a catch s<2> which is turned by a key s<3> so that it engages either a wedge-shaped slot in a striking plate s<1> provided, as shown in Fig. 3, in the adjacent section, or a metal strip i provided in a groove h in the frame member b as shown in Fig. I. Certain of the wall sections may be provided with door and window frames.
Patent GB-602613-A (GB)
Title: Improvements in or relating to degassing and grain refining of metals
IPC: C22B9/05
Filed: 1945-07-24
Abstract: In the degassing and refining of aluminium, copper or nickel or their alloys an anhydrous composition is used formed substantially of one or more borofluorides with hexachlorethane or of one or more borofluorides with anhydrous boric acid with or without hexachlorethane, or a composition comprising only one or more borofluorides may be used which is arranged to be held below the surface of the molten metal.  The composition may include an alkali borofluoride and may contain also sodium-silicofluoride.  A perforated plunger of iron or other suitable material may be employed to plunge the composition below the surface of the molten metal while permitting the passage of the gas liberated by decomposition of the refining agent.
Patent GB-122387-A (GB)
Title: Improvements relating to Water Heaters.
Inventor: DARBY EDWIN
IPC: F24H9/12
Filed: 1918-11-19
Abstract: 122,387. Darby, E. Nov. 19, 1918. Water supply and delivery.-In a gas or oil heated water heater, the inlet pipe 8 is arranged to project downwardly at 9 inside the boiler 1 and to terminate slightly below the middle of the boiler, while the outlet pipe 10 is arranged to project upwardly at 11 and to terminate slightly above the middle of the boiler. Preferably both pipes connect with the boiler near its mid-point and have short promoting portions 9, 11. A constant level of water within the boiler is maintained by means of a supply tank 6 fitted with a ball valve 7. The boiler is surrounded by a casing 2 and provided with transverse watertubes 4 and smoke-tubes 5 near its base.
Patent GB-809086-A (GB)
Title: Improvements in or relating to rotary fluid pressure actuators
Inventor: CLENCH EDWARD CLAUDE SHAKESPEA
IPC: F15B15/12
Filed: 1956-06-19
Abstract: 809,086. Locking rotary members. AUTOMOTIVE PRODUCTS CO. Ltd. June 5, 1957  [June 19, 1956], No. 18980/56. Class 80 (3). In order to prevent rotation of a shaft 25, Fig. 1, except when driven by the rotor 11 of a fluid pressure actuator, a flange 26, Fig. 2, on the shaft 25 is frictionally locked to a fixed ring 31 by oppositely-acting pairs of spring- loaded wedging balls or rollers 28 which are released by axially-extending projections 22 on a disc 19 splined to the rotor as the lost motion between dogs 21, 27 coupling the disc 19 and flange 26 is taken up. In the actuator shown an annular space 13, Fig. 3, between the rotor 11 and a housing 10 has a partition 14 to one or other side of which pressure liquid is supplied so as to move a vane 12 on the rotor through an angle of somewhat less than 360 degrees. It is stated that actuators employing gas pressure or effecting rotations of more than 360 degrees may be employed.
Patent GB-380451-A (GB)
Title: Well-lining process and device
IPC: E21D5/012
Filed: 1931-03-24
Abstract: 380,451. Lining wells. HAMMER, L., 40, Bastiengasse, Vienna. March 24, 1931, No. 19045/32. Convention date, March 25, 1930. Divided on 380,469. [Class 85.] Wells are lined by a device which may follow a boring machine and is adapted to throw or squeeze concrete, asphalt, or the like on to the wall of the well, the concrete or the like being then smoothed by the walls of the device as it moves axially of the well. As shown, the device is lowered down the rope 28 carrying the boring machine and comprises a tank 1 containing cement and sand and an inner tank 3, containing water, the cement and sand passing along guides 4 through openings 5 and past measuring drums 9 driven by motors 8 and being then mixed with water supplied by pump 12 and pipes 14, finally passing into a rapidly rotating drum 17, driven by motors 30 and gearing 31, for delivery through nozzles 19 on to the wall of the well, the nozzles having inset rear edges to spread the cement ; the nozzles 19 may be at successively higher levels. Water is also supplied through nozzles 23, 25, and the outer walls of the drum 17 and an intermediate cylinder 15 smooth the cement and may have rubber, artificial resin, or oil-soaked wood surfaces for lubrication. Excess material falls through openings 21 to a tray 32 sealed against the wall of the well by a tyre 33 and bristles 35 and carrying a rubber or leather band 34. The lining is finally cut to the required inner diameter by means of a frame rotating horizontally and carrying annular files. The motors 8, 30 may be replaced by a single motor which also drives the pump 12. Alternatively, the lining may be applied by means of a mortar container with a loose bottom movable away from the body to leave an annular gap through which the mortar is forced under pressure while the device is fed axially, the container smoothing the lining ; such a device may have electric heaters and be used for applying an asphalt &c. lining, a cold water tank with scraping faces then following the device to cool the lining.
Patent GB-1044650-A (GB)
Title: Improvements in vehicle road wheel suspensions
IPC: B60G3/20
Filed: 1965-05-06
Abstract: 1,044,650. Vehicle suspension. DAIMLERBENZ A.G. May 6, 1965 [May 8, 1964], No. 19169/65. Heading B7D. A road vehicle suspension comprises a pair of transverse arms 11, 13, pivoted in the vehicle at 12 and 14. One or both pivots may include eccentric adjustment means, e.g. as at 14. The connections to the wheel carrier arm 15 may include a resilient cushion 17a. A suspension device may be pivotally connected between the arms at connection points of differing radii or between one arm and the vehicle and comprise a piston 20 and a pair of concentric cylinders 22, 23. The space 29 below the piston 20 may provide an air cushion or may be open to atmosphere. The space 30 above the piston 20 is filled with liquid and connects via an opening 31 with the annular space 24 between the cylinders which is connected through an opening 32, conduit 33, throttle valve 34 with a suspension unit 35 in which the liquid is separated from an air spring 37 by a flexible diaphragm 36. The space 37 may alternatively be filled with a liquid displaceable against spring or air pressure. A stabilizing cranked torsion bar 39 may be pivoted to the vehicle at 40 and connected by a rod 42 to the arm 13. A rubber buffer may be incorporated above the arm 13 and another within the space 20.